Recent content by bohobelle

Homework Statement You grew up with a salad spinner that operates with a string attached to a wheel with a radius of 6 cm. Unfortunately, the string broke last week and you need to get it working again before Thanksgiving. You need to figure out how strong the replacement string must be in...

Homework Statement Energy, Center of Mass: As a project your team is given the task of designing a space station consisting of four different habitats. Each habitat is an enclosed sphere containing all necessary life support and laboratory facilities. The masses of these habitats are 10 x 105...

I got 658.69 as the coefficient of friction, does this seem correct?

How would I get from acceleration to friction?

Homework Statement You're at the amusement park and your friend wants to go on the "Barrel of Fun," where the ride is a cylinder with a vertical axis. You stand against the wall and after the ride is spinning fast enough, the floor drops out beneath you. What is the minimum coefficient of...

Homework Statement Imagine that all the electricity used in an average home comes from hydroelectric generation. Your task is to estimate the annual average rate at which water would need to flow to generate the power for that home (gallons per minute or cubic meters per second). Make your...

Homework Statement You drop a ball from a high balcony and it falls freely. Does the ball's kinetic energy increase by equal amounts in equal time intervals, or by equal amounts in equal distances? Explain.Homework Equations KE = 1/2mv^2 PE = mgy Conservation of energy: Emech = KE + PE; Esys =...